Well then what you just said about the front is the same reason the revolvers work on the back.
I've run the Rubicon both with and without revolvers with no lockers. And there is no way I could have ran the whole trail without the revolvers and no locker.
I don't get you're theory that more travel in back won't help an IFS . So you're saying that it's better to have 2 tires in the air .